/* Layout: one narrow column; the tip is a gold perforated ticket that travels from create → fund → claim. */
:root{
  --ink:#0C0D13;
  --panel:#151722;
  --panel-2:#1C1F2D;
  --line:#2B2F42;
  --text:#EEEBE3;
  --muted:#8E92AA;
  --gold:#F3BA2F;
  --gold-hi:#FFD66B;
  --gold-deep:#B9840F;
  --mint:#57E0A4;
  --rose:#FF7180;
  --violet:#7B6CFF;
  --on-gold:#17130A;
  --display:'Unbounded','Arial Black',system-ui,sans-serif;
  --body:'Onest',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:18px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;background:var(--ink);color:var(--text);
  font:15px/1.55 var(--body);-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%}
[hidden]{display:none!important}
button,input,textarea{font:inherit;color:inherit}
a{color:var(--gold)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}

/* ambient background */
.glow{position:fixed;z-index:-1;border-radius:50%;filter:blur(90px);opacity:.38;pointer-events:none}
.glow.g1{width:520px;height:520px;background:var(--gold-deep);top:-260px;right:-180px;animation:drift 18s ease-in-out infinite alternate}
.glow.g2{width:460px;height:460px;background:var(--violet);bottom:-260px;left:-200px;opacity:.28;animation:drift 22s ease-in-out infinite alternate-reverse}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
@keyframes drift{to{transform:translate(-60px,50px) scale(1.12)}}

/* top bar */
.bar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;gap:12px;
  padding:calc(12px + env(safe-area-inset-top,0px)) 16px 12px;
  background:color-mix(in srgb,var(--ink) 78%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid color-mix(in srgb,var(--line) 60%,transparent);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font:700 16px var(--display);letter-spacing:-.01em;margin-right:auto}
.brand-mark{width:30px;height:30px;flex:none}
.nav{display:flex;gap:4px}
.nav button{background:none;border:0;padding:8px 12px;border-radius:10px;color:var(--muted);cursor:pointer;font-weight:500}
.nav button[aria-current="page"]{color:var(--text);background:var(--panel-2)}
.nav .count{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;margin-left:6px;border-radius:9px;background:var(--gold);color:var(--on-gold);font:600 11px var(--body)}
.wallet-btn{border:1px solid var(--line);background:var(--panel);padding:8px 12px;border-radius:12px;cursor:pointer;font:500 13px var(--mono);white-space:nowrap}
.wallet-btn .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:7px;vertical-align:1px}

/* page */
main{width:100%;max-width:480px;margin:0 auto;padding-block:28px 40px;padding-inline:16px}
.stack{display:flex;flex-direction:column;gap:16px}
.hero h1{font:700 clamp(30px,8.5vw,42px)/1.05 var(--display);letter-spacing:-.03em;margin:4px 0 12px;text-wrap:balance}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p{margin:0;color:var(--muted);max-width:40ch}
h2{font:700 22px/1.2 var(--display);letter-spacing:-.02em;margin:0;text-wrap:balance}
h3{font:600 13px var(--body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:16px;min-width:0}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em}
.fine{font-size:12.5px;color:var(--muted);margin:0}
.msg{margin:0;font-size:14px;min-height:0}
.msg.err{color:var(--rose)}
.msg.ok{color:var(--mint)}

/* inputs */
.input,textarea.input{
  width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;outline:none;transition:border-color .15s;
}
.input:focus{border-color:var(--gold)}
textarea.input{resize:vertical;min-height:72px}
.input.mono{font-family:var(--mono);font-size:13.5px}
.amount-wrap{display:flex;align-items:baseline;gap:10px;background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:10px 16px;transition:border-color .15s}
.amount-wrap:focus-within{border-color:var(--gold)}
.amount-wrap input{flex:1;min-width:0;background:none;border:0;outline:none;font:700 38px/1.2 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.amount-wrap .sym{font:600 16px var(--display);color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:transparent;border-radius:999px;padding:6px 14px;cursor:pointer;font-weight:500;color:var(--muted)}
.chip:hover{color:var(--text);border-color:var(--muted)}

.seg{display:flex;flex-wrap:wrap;gap:6px;padding:4px;background:var(--panel-2);border:1px solid var(--line);border-radius:14px}
.seg label{flex:1 1 auto;position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;text-align:center;padding:9px 12px;border-radius:10px;font-weight:600;color:var(--muted);transition:background .15s,color .15s}
.seg input:checked + span{background:var(--gold);color:var(--on-gold)}
.seg input:focus-visible + span{outline:2px solid var(--gold);outline-offset:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:14px 18px;font-weight:600;font-size:15px;cursor:pointer;text-decoration:none;transition:transform .12s,filter .15s,background .15s}
.btn:active{transform:translateY(1px)}
.btn.primary{background:linear-gradient(180deg,var(--gold-hi),var(--gold));color:var(--on-gold);box-shadow:0 8px 24px -10px var(--gold)}
.btn.primary:hover{filter:brightness(1.05)}
.btn.ghost{background:var(--panel-2);color:var(--text);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--muted)}
.btn.sm{padding:9px 13px;font-size:13.5px;border-radius:11px}
.btn.wide{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn .spin{width:16px;height:16px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.row{display:flex;gap:8px;flex-wrap:wrap}
.row > .btn{flex:1 1 auto}

/* the ticket */
.ticket{filter:drop-shadow(0 18px 40px rgba(0,0,0,.45))}
.t-top{
  position:relative;overflow:hidden;
  background:
    radial-gradient(120% 90% at 100% 0%,rgba(255,255,255,.35),transparent 55%),
    linear-gradient(135deg,var(--gold-hi),var(--gold) 45%,var(--gold-deep));
  color:var(--on-gold);border-radius:var(--r) var(--r) 0 0;padding:20px 22px 22px;
  -webkit-mask:radial-gradient(circle 12px at 0 100%,#0000 97%,#000) left/51% 100% no-repeat,radial-gradient(circle 12px at 100% 100%,#0000 97%,#000) right/51% 100% no-repeat;
          mask:radial-gradient(circle 12px at 0 100%,#0000 97%,#000) left/51% 100% no-repeat,radial-gradient(circle 12px at 100% 100%,#0000 97%,#000) right/51% 100% no-repeat;
}
.t-top::after{ /* faint guilloche lines, like a printed voucher */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.16;
  background:repeating-radial-gradient(circle at 115% 130%,transparent 0 9px,var(--on-gold) 9px 10px);
}
.t-head{display:flex;justify-content:space-between;align-items:center;gap:12px;position:relative;z-index:1}
.t-kicker{font:600 11px var(--body);letter-spacing:.14em;text-transform:uppercase;opacity:.75}
.t-net{font:500 11px var(--mono);padding:3px 8px;border-radius:6px;background:rgba(23,19,10,.12)}
.t-amount{position:relative;z-index:1;display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 12px;margin-top:14px}
.t-amount b{font:700 clamp(40px,12vw,56px)/1 var(--display);letter-spacing:-.04em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.t-amount span{font:700 18px var(--display)}
.t-usd{position:relative;z-index:1;font-size:13px;opacity:.7;margin-top:6px}
.t-bot{
  position:relative;background:var(--panel-2);border-radius:0 0 var(--r) var(--r);padding:18px 22px 20px;
  display:flex;flex-direction:column;gap:6px;min-width:0;
  -webkit-mask:radial-gradient(circle 12px at 0 0,#0000 97%,#000) left/51% 100% no-repeat,radial-gradient(circle 12px at 100% 0,#0000 97%,#000) right/51% 100% no-repeat;
          mask:radial-gradient(circle 12px at 0 0,#0000 97%,#000) left/51% 100% no-repeat,radial-gradient(circle 12px at 100% 0,#0000 97%,#000) right/51% 100% no-repeat;
}
.t-bot::before{content:"";position:absolute;top:0;left:20px;right:20px;border-top:2px dashed var(--line)}
.t-from{font-size:13px;color:var(--muted)}
.t-from b{color:var(--text);font-weight:600}
.t-note{margin:0;font-size:16px;line-height:1.45;overflow-wrap:anywhere}
.t-note.empty{color:var(--muted);font-style:italic;font-size:14px}
.t-id{font:400 11.5px var(--mono);color:var(--muted);margin-top:4px}
.ticket.dim .t-top{filter:grayscale(.85) brightness(.7)}
.ticket.pop{animation:pop .6s cubic-bezier(.2,1.4,.4,1)}
@keyframes pop{0%{transform:scale(.94) rotate(-1.5deg);opacity:0}100%{transform:none;opacity:1}}

/* tabs */
.tabs{display:flex;gap:4px;padding:4px;background:var(--panel-2);border-radius:13px;border:1px solid var(--line)}
.tabs button{flex:1;border:0;background:none;padding:10px;border-radius:9px;cursor:pointer;font-weight:600;color:var(--muted)}
.tabs button[aria-selected="true"]{background:var(--panel);color:var(--text);box-shadow:0 1px 0 rgba(255,255,255,.04) inset,0 2px 8px rgba(0,0,0,.3)}

/* qr + address */
.qr-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.qr{width:150px;flex:none;background:#fff;border-radius:14px;padding:8px;line-height:0}
.qr svg{width:100%;height:auto;display:block}
.qr-side{flex:1 1 180px;min-width:0;display:flex;flex-direction:column;gap:10px}
.addr{display:flex;align-items:center;gap:8px;background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:10px 10px 10px 14px;min-width:0}
.addr code{flex:1;min-width:0;font:500 12.5px/1.45 var(--mono);overflow-wrap:anywhere;word-break:break-all}
.icon-btn{flex:none;border:0;background:var(--panel);border:1px solid var(--line);border-radius:9px;width:34px;height:34px;display:grid;place-items:center;cursor:pointer;color:var(--text)}
.icon-btn:hover{border-color:var(--muted)}
.icon-btn svg{width:16px;height:16px}

.sendlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.sendlist li{display:flex;justify-content:space-between;gap:12px;font-size:14px;flex-wrap:wrap}
.sendlist li span{color:var(--muted)}
.sendlist li b{font-family:var(--mono);font-weight:500;font-variant-numeric:tabular-nums}

.warn{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.45;color:var(--text);background:color-mix(in srgb,var(--gold) 9%,var(--panel-2));border:1px solid color-mix(in srgb,var(--gold) 30%,var(--line));border-radius:12px;padding:11px 13px;margin:0}
.warn svg{flex:none;width:16px;height:16px;margin-top:2px;color:var(--gold)}
.warn.red{background:color-mix(in srgb,var(--rose) 9%,var(--panel-2));border-color:color-mix(in srgb,var(--rose) 35%,var(--line))}
.warn.red svg{color:var(--rose)}

/* status list */
.status{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.status li{display:flex;align-items:center;gap:12px;font-size:14px}
.status .state{margin-left:auto;font:500 12.5px var(--mono);color:var(--muted);text-align:right}
.status li.ok .state{color:var(--mint)}
.pip{width:22px;height:22px;flex:none;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center}
.status li.wait .pip{border-color:var(--gold);border-right-color:transparent;animation:spin 1.1s linear infinite}
.status li.ok .pip{border-color:var(--mint);background:var(--mint)}
.status li.ok .pip::after{content:"";width:8px;height:5px;border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(-45deg) translate(1px,-1px)}
.status li.bad .pip{border-color:var(--rose)}
.status li.bad .state{color:var(--rose)}

details.backup{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px 18px}
details.backup summary{cursor:pointer;font-weight:600;font-size:14px}
details.backup[open] summary{margin-bottom:12px}

/* link box */
.linkbox{font:500 12.5px/1.5 var(--mono);background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;word-break:break-all;color:var(--muted);max-height:96px;overflow:auto;user-select:all}
.share{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.share a{text-align:center}

/* how it works */
.how{list-style:none;margin:6px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.how li{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 12px;font-size:13px;color:var(--muted);min-width:0}
.how b{display:block;font:700 13px var(--display);color:var(--text);margin-bottom:4px}
.how i{font:500 11px var(--mono);font-style:normal;color:var(--gold);display:block;margin-bottom:8px}
@media (max-width:420px){.how{grid-template-columns:1fr}}

/* claim log */
.log{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:13.5px}
.log:empty{display:none}
.log li{display:flex;gap:10px;align-items:baseline}
.log li::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--gold);transform:translateY(-1px)}
.log li.ok::before{background:var(--mint)}
.log li.err::before{background:var(--rose)}
.log a{font-family:var(--mono);font-size:12.5px}

.inside{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.inside li{display:flex;justify-content:space-between;font-size:14px}
.inside li span{color:var(--muted)}
.inside li b{font:500 14px var(--mono);font-variant-numeric:tabular-nums}

.addr-in{display:flex;gap:8px}
.addr-in .input{flex:1;min-width:0}

.success{text-align:center;align-items:center}
.success .big{font:700 30px/1.1 var(--display);letter-spacing:-.03em;margin:0}
.badge{display:inline-flex;align-items:center;gap:6px;font:600 12px var(--body);letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:color-mix(in srgb,var(--mint) 16%,transparent);color:var(--mint)}

/* my tips */
.tip-list{display:flex;flex-direction:column;gap:12px}
.tip-item{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
.tip-item .top{display:flex;align-items:center;gap:12px}
.tip-item .amt{font:700 20px var(--display);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.tip-item .amt small{font-size:12px;color:var(--muted);margin-left:4px}
.tip-item .meta{font-size:13px;color:var(--muted);overflow-wrap:anywhere}
.pill{margin-left:auto;font:600 11.5px var(--body);letter-spacing:.04em;padding:4px 10px;border-radius:999px;background:var(--panel-2);color:var(--muted);white-space:nowrap}
.pill.live{background:color-mix(in srgb,var(--gold) 16%,transparent);color:var(--gold)}
.pill.done{background:color-mix(in srgb,var(--mint) 14%,transparent);color:var(--mint)}
.pill.new{background:color-mix(in srgb,var(--violet) 18%,transparent);color:#B3AAFF}
.confirm{display:flex;flex-direction:column;gap:10px;padding:12px;border-radius:12px;background:color-mix(in srgb,var(--rose) 8%,var(--panel-2));border:1px solid color-mix(in srgb,var(--rose) 30%,var(--line));font-size:13.5px}
.empty-state{text-align:center;padding:36px 20px;color:var(--muted)}
.empty-state b{display:block;font:700 18px var(--display);color:var(--text);margin-bottom:6px}

.back{align-self:flex-start;background:none;border:0;color:var(--muted);cursor:pointer;padding:4px 0;font-weight:500}
.back:hover{color:var(--text)}

.skeleton{height:14px;border-radius:7px;background:linear-gradient(90deg,var(--panel-2),var(--line),var(--panel-2));background-size:200% 100%;animation:sh 1.2s linear infinite}
@keyframes sh{to{background-position:-200% 0}}

footer{max-width:480px;margin:0 auto;padding:0 16px calc(32px + env(safe-area-inset-bottom,0px));text-align:center;font-size:12px;color:var(--muted)}
footer span{display:inline-block;margin:0 6px}

#toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);opacity:0;background:var(--text);color:var(--ink);font-weight:600;font-size:14px;padding:11px 18px;border-radius:12px;transition:opacity .2s,transform .2s;pointer-events:none;z-index:50;max-width:calc(100% - 32px)}
#toast.show{opacity:1;transform:translate(-50%,0)}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:40;width:100%;height:100%}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}
@media (max-width:420px){
  .nav button{padding:8px 9px}
  .wallet-btn{padding:8px 10px}
  .brand span{display:none}
}

/* checkbox row (cover the fee) */
.check{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:var(--panel-2);border:1px solid var(--line);cursor:pointer;font-size:14px;line-height:1.45}
.check input{appearance:none;-webkit-appearance:none;flex:none;width:20px;height:20px;margin:1px 0 0;border-radius:6px;border:2px solid var(--line);background:var(--panel);display:grid;place-items:center;cursor:pointer}
.check input:checked{background:var(--gold);border-color:var(--gold)}
.check input:checked::after{content:"";width:9px;height:5px;border-left:2px solid var(--on-gold);border-bottom:2px solid var(--on-gold);transform:rotate(-45deg) translate(1px,-1px)}
.check input:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.check b{font-weight:600}
.stack > h3{margin-top:6px}
@media (max-width:420px){ .nav{gap:2px} .nav button{padding:8px 8px;font-size:13.5px} .wallet-btn{font-size:12px} }
.wallet-btn{max-width:132px;overflow:hidden;text-overflow:ellipsis}
@media (max-width:380px){ .wallet-btn{max-width:96px} }

/* send / request switch on the main page */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mode{display:flex;align-items:center;gap:12px;text-align:left;padding:14px;border-radius:16px;cursor:pointer;
  background:var(--panel);border:1.5px solid var(--line);color:var(--text);transition:border-color .15s,background .15s,transform .12s;min-width:0}
.mode:hover{border-color:var(--muted)}
.mode:active{transform:translateY(1px)}
.mode.on{border-color:var(--gold);background:color-mix(in srgb,var(--gold) 10%,var(--panel));cursor:default}
.mode-ic{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--panel-2);border:1px solid var(--line);color:var(--muted)}
.mode-ic svg{width:20px;height:20px}
.mode.on .mode-ic{background:var(--gold);border-color:var(--gold);color:var(--on-gold)}
.mode-txt{display:flex;flex-direction:column;min-width:0}
.mode-txt b{font:700 14.5px/1.25 var(--display);letter-spacing:-.01em}
.mode-txt small{font-size:12.5px;color:var(--muted);margin-top:2px}
@media (max-width:400px){ .mode{flex-direction:column;align-items:flex-start;gap:10px} }

/* network picker */
.chains{display:flex;flex-wrap:wrap;gap:8px}
.chain-opt{position:relative;cursor:pointer}
.chain-opt input{position:absolute;opacity:0;pointer-events:none}
.chain-opt span{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;border:1.5px solid var(--line);background:var(--panel-2);font-weight:600;font-size:14px;color:var(--muted);transition:border-color .15s,color .15s,background .15s}
.chain-opt span em{font-style:normal;font-weight:500;font-size:11px;color:var(--rose);margin-left:2px}
.chain-opt:hover span{color:var(--text)}
.chain-opt input:checked + span{border-color:var(--gold);color:var(--text);background:color-mix(in srgb,var(--gold) 10%,var(--panel-2))}
.chain-opt input:focus-visible + span{outline:2px solid var(--gold);outline-offset:2px}
.cdot{display:inline-block;width:9px;height:9px;border-radius:50%;flex:none;font-style:normal}
.t-net{display:inline-flex;align-items:center;gap:6px}
.t-net .cdot{box-shadow:0 0 0 1.5px rgba(23,19,10,.35)}
.meta .cdot{margin-right:5px;vertical-align:0}